Tumbled Stromatolite / 20-35mm AVG - 1 LB. LOT menu stars 5 to 1 Inch) Sizes

5 to 1 Inch) Sizes Vary

smoky quartz and quartz

This process can create unique and intricate patterns in the stone

Amethyst Gemstone Metal Water Bottle with Black Sleeve

Average size range: 30 to 60 millimeters

Tumbled Stromatolite / 20-35mm AVG - 1 LB. LOT menu stars 5 to 1 Inch) SizesQuantity: 1 pound Average size range: 20 to 35 millimeters Stromatolites are layered sedimentary stones formed by photosynthetic bacteria. These bacteria form mineral layers by cementing local stone, sand, and gravel together over long periods of time. These structures can reach over 3 feet tall, and fossilized stromatolites are useful records of Precambrian life in paleontology.